US6830181B1 - Combined optical and radio frequency tag reader - Google Patents

Combined optical and radio frequency tag reader Download PDF

Info

Publication number
US6830181B1
US6830181B1 US09695718 US69571800A US6830181B1 US 6830181 B1 US6830181 B1 US 6830181B1 US 09695718 US09695718 US 09695718 US 69571800 A US69571800 A US 69571800A US 6830181 B1 US6830181 B1 US 6830181B1
Authority
US
Grant status
Grant
Patent type
Prior art keywords
information
tag
goods
device
associated
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
US09695718
Inventor
James D. Bennett
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Intermec IP Corp
Original Assignee
Intermec IP Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Grant date

Links

Images

Classifications

    • GPHYSICS
    • G06COMPUTING; CALCULATING; COUNTING
    • G06KRECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/10Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
    • G06K7/10544Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation by scanning of the records by radiation in the optical part of the electromagnetic spectrum
    • G06K7/10821Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation by scanning of the records by radiation in the optical part of the electromagnetic spectrum further details of bar or optical code scanning devices
    • G06K7/10881Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation by scanning of the records by radiation in the optical part of the electromagnetic spectrum further details of bar or optical code scanning devices constructional details of hand-held scanners
    • GPHYSICS
    • G06COMPUTING; CALCULATING; COUNTING
    • G06KRECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/06Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
    • G06K19/08Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code using markings of different kinds or more than one marking of the same kind in the same record carrier, e.g. one marking being sensed by optical and the other by magnetic means
    • GPHYSICS
    • G06COMPUTING; CALCULATING; COUNTING
    • G06KRECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/0004Hybrid readers
    • GPHYSICS
    • G06COMPUTING; CALCULATING; COUNTING
    • G06KRECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K17/00Methods or arrangements for effecting co-operative working between equipments covered by two or more of the preceding main groups, e.g. automatic card files incorporating conveying and reading operations
    • G06K2017/0035Aspects not covered by other subgroups
    • G06K2017/0051Stock management, inventory systems

Abstract

A system and method is described which utilizes a dual function reader device, which may be a hand-held inventory control device, which first performs an optical read of an optical bar code on a carrier unit, then based on the identification or other information obtained from the optical read a RF read is made of a RF tag attached to, or within, the carrier unit. An indicator light on the carrier unit illuminates when the optical read is completed, which allows an operator to visually verify that the optical read has transpired for the desired carrier unit. The RF tag provides data regarding the inventory of the goods stored within, or on, the carrier unit, the temperature of the goods, the shelf-life of the goods, the source and/or destination of the carrier unit and/or the goods, or other information. Data can also be written to the RF tag by the reader.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS

The present application is a continuation of application Ser. No. 09/247,460 filed Feb. 9, 1999, now abandoned; said application Ser. No. 09/247,460 claims priority to U.S. Provisional Application Ser. No. 60/074,145, filed Feb. 9, 1998, which is hereby incorporated by reference herein in its entirety.

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention relates to a system and method for performing an optical read and a RF read on a carrier unit. More particularly, the present invention relates to a system and method for performing an optical read prior to establishing communication between a RF interrogation device and a RF tag, and more particularly to a system and method for performing a bar code read prior to establishing communication between a RF interrogation device and a RF tag.

2. Description of the Related Art

Given the fast pace of commerce today, it is imperative that the movement of articles of manufacture (“goods”) from one location to another be tracked. Goods must be identified quickly, including information concerning the source of the goods, the location of the goods and the destination of the goods. When goods are stacked on pallets in a warehouse, on a loading dock, in a railcar, or in any similar temporary storage environment, it is imperative that the identification of the goods be made quickly and relatively inexpensively so inventory of the goods can be had as the goods are transported further down the commerce stream without undue delay.

The use of passive RF transponder devices is common. These devices require no internal power source and can be manufactured relatively inexpensively in mass quantities. In a passive tag system, a radio transponder uses radio frequency energy in a RF interrogation device (tag reader) to communicate with a passive RF tag. An energizing signal is transmitted by the RF interrogating device, which creates an energizing field. This field powers up the passive transponder RF tags within the field and enables the RF tags to transmit their identity, and other data, to the interrogating device.

Regarding RF tags, there are several common varieties. RF tags for articles, or goods, are typically passive, deriving all their operational power from a RF interrogation signal. Active tags having a battery or other internal power source are typically used for vehicle, or other large object, tracking and/or identifying. A passive/active RF tag includes a passive receiver section and an active processing, storage and/or transmitting section. One-bit tags are generally used in an electronic article surveillance (EAS) system in retail stores as a security measure to protect against theft. For one-bit tags, the logical state of the security bit is detected by an interrogation device near the store exit. An alarm will sound if the article containing the RF tag passes through an interrogation signal from the interrogation device with an incorrectly coded tag, i.e. a tag for an unpaid article coded as not yet being permitted to leave the store premises.

For passive RF tag operation, frequently a principle called backscatter modulation is used for data communication from the RF tag to the RF interrogating device. The energizing field created by the interrogating device is typically in the form of a carrier wave signal at a fixed frequency. The energy of the transmitted carrier wave signal is received by the coil, or antenna, of the RF tag, is rectified, and is used to power the RF tag. The carrier may be in the form of a header that is transmitted for a sufficient period of time, e.g. 30 milliseconds, to enable the RF tag to “charge up” prior to communicating with the interrogating device. After the charge up period, the RF tag device is able to transmit control signals, timing signals, data or otherwise communicate with the interrogating device.

The RF tag generates a signal for the interrogating device in the form of a data stream, which may include a clock signal and data stored in the RF tag. This generated signal may be in the form of a modified manchester encoded signal at a second frequency (e.g. 10 KHz) that is shifted from the original interrogating signal (e.g. 915 MHz) by the clock rate of the RF tag. The data stored in the RF tag is used within the RF tag to drive a shorting, or shunt, transistor connected across the RF tag antenna. This has the effect of changing the reflectivity of the RF tag antenna with respect to the interrogating signal from the interrogating device and causes some of the received energy from the interrogating device to be reflected back towards a receiver on the interrogating device. The RF tag acts as a field disturbance device by reflecting the incident RF interrogation signal in a coded manner. The energy reflected by the RF tag may take the form of data packets. A simple receiver on the interrogating device, using the RF tag signal as a local oscillator, can decode the received signal from the RF tag and extract the encoded data.

Optical scanning devices are used to read a bar code printed on a label which is attached to individual goods or attached to a shipping container, a storage container, a box, a shipping pallet, or to any similar container, herein referred to as a “carrier unit”, for transporting or temporarily storing goods. Optical scanners typically perform a read of one-dimensional coded images (e.g. bar codes) or a read of two-dimensional coded images. The two-dimensional codes typically include more information than the one-dimensional variety, but two-dimensional readers typically cost more than one-dimensional readers.

Performing an optical read on a bar code has associated problems. The operator of the reader must be in line of sight with the bar code and must be close enough for optimum performance of the reader. A dirty scanning window on the reader, or a dirty or torn bar code label will cause a misread leading to errors. Additionally, information encoded in the bar code cannot be changed without printing another bar code that contains the new information.

Using a RF tag reader also has associated problems. In a large storage facility, such as a warehouse, using a RF tag reader alone to identify and track goods may be difficult and/or inefficient. A RF tag reader sends out an interrogation signal which is responded to by one or more tags which have received the interrogation signal using a chosen preestablished protocol. Unfortunately, the physical location of the carrier unit used to store the goods may be indiscernible.

Neither an optical reader nor a RF reader can, by itself, quickly and accurately ascertain both the physical location of the desired carrier unit or individual goods and identify, and read from and/or write to a RF tag associated with the desired carrier unit or individual goods.

SUMMARY OF THE INVENTION

Using the system and method of the present invention, which includes the combined functionality of an optical bar code reader and a RF tag reader, information in regard to an individual carrier unit, or the individual goods associated therewith, can be ascertained quickly and efficiently. The physical location of the carrier unit or individual goods can also be ascertained. Since a bar code label typically includes only basic information about the carrier unit or goods, such as the identity of the goods, or other limited scope of information, a RF tag may be used in conjunction with a bar code label to supplement the information needed concerning the carrier unit and/or the goods.

RF tags are wireless responsive devices attached to or embedded within articles of commerce or other objects to be communicated with by an interrogation device using RF communication or other wireless communication scheme. Each responsive device contains within its memory or otherwise stored within, a communication sequence, or tag sequence, for a RF tag which is unique to and identifies the individual responsive device. Also contained within each responsive device is data which corresponds to information describing the goods to which it is associated, such as the source of the goods, the goods' destination, price, preferred storage temperature, current temperature, weight, etc.

The responsive device may be interrogated at a point of sale terminal, such as at a store checkout counter, or on a loading dock, in a warehouse, in a truck, etc. Any number of stationary or hand-held devices may be used to transmit an interrogation signal to attempt to communicate with each of the plurality of responsive devices.

In the present invention, a dual function reader device is used to scan an optical bar code attached to a carrier unit, which includes a storage container, shipping pallet, or other temporary carrier for storing goods in commerce. An optical scanner portion of the dual function reader reads the bar code which provides data to the device and causes an indicator light disposed on the bar code label to illuminate, indicating to the operator of the scanner that the bar code for the desired carrier unit has been read. The bar code includes data corresponding to the identity of the goods stored with the carrier unit, or the identity of the carrier unit itself. A RF tag button disposed on the carrier unit could be pushed by an operator to enable the RF tag associated with the carrier unit to enable the RF tag to communicate with the RF read portion of the reader.

The data read from the bar code label may be the address of a RF tag attached to the goods and/or attached to the carrier unit. An RF tag reader portion of the dual function reader uses the address obtained from the optical read operation to address the individual RF tag associated with the carrier unit. The reader then communicates with the RF tag of the carrier unit to obtain more detailed information regarding the goods, such as the source, the destination, the storage temperature, the current temperature, weight sensing information, bacteria sensing information, shelf-life information, etc. Information about the carrier unit itself is also obtained, regarding the inventory of goods stored with the carrier unit, the source of the carrier unit, the destination of the carrier unit, the last usage of the carrier unit, etc.

A small low-powered radio is attached to the carrier unit, where, in reporting mode, the, radio periodically wakes up and transmits status information to a base station or to an access point for a wired or wireless infrastructure network. In status mode, a base station addresses a particular carrier unit's RF tag and then establishes communication with the RF tag to obtain status information regarding the carrier unit and/or the associated goods.

Moreover, other aspects of the present invention will become apparent with further reference to the drawings and specification which follow.

BRIEF DESCRIPTION OF THE DRAWINGS

A better understanding of the present invention can be obtained when the following detailed description of the preferred embodiment is considered in conjunction with the following drawings, in which:

FIG. 1 schematically illustrates a dual function reader device and a carrier unit in accordance with the present invention;

FIG. 2 schematically illustrates an optical bar code label in accordance with the present invention;

FIGS. 3-5 illustrate various embodiments of carrier units in accordance with the present invention;

FIG. 6 illustrates an embodiment of a dual function reader device in accordance with the present invention;

FIG. 7 schematically illustrates the internal components of the reader device of FIG. 6;

FIG. 8 is a block diagram of an embodiment of an RF tag in accordance with the present invention;

FIG. 9 schematically illustrates a carrier unit and a biological sensor in accordance with the present invention;

FIG. 10 schematically illustrates a stack of carrier units and shipping crates, including a pressure sensor, in accordance with the present invention; and

FIG. 11 illustrates an embodiment of a grid system for a carrier unit location system in accordance with the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT

In commerce today, articles of commerce, or goods, are typically transported from manufacturer to wholesaler to retailer by boat, plane, train or truck in shipping containers, boxes, crates, or truck trailers, and/or stored on shipping pallets or other similar shipping platforms for temporarily holding or storing goods. These containers or pallets are generally described herein as “carrier units”. At some point in this commerce stream, the goods are typically stored, at least temporarily, in a depot or warehouse awaiting further transport to their ultimate destination. Inventory control of the numerous carrier units and associated goods in a warehouse setting presents a formidable task. Carrier units being loaded or unloaded from planes, boats, trains, trucks or other shipping vehicle may utilize a passive RF tag system to identify and track the goods in transit. Passive tag systems built in accordance with the present invention may be utilized to detect and identify a particular carrier unit, or good, and the associated price, and other information, for goods in transit, in storage, or being purchased by a consumer in a retail store.

Referring to FIG. 1, RF tag 60 associated with a carrier unit 100 responds to a RF interrogation signal generated by a RF interrogating device. The interrogating device is a dual combined function optical read and RF read reader 10, described below, which is illustrated as being a hand-held inventory control device capable of being attached by a tether 24 to a warehouse forklift (not shown) or other large device having its own power source, or may be a portable self-powered reader carried by an individual operator. The interrogating device could otherwise be a stationary device, such as a base station (not shown) located in close proximity to where the carrier unit 100 is being temporarily stored. A RF response signal generated by the RF tag 60 contains the identity of the carrier unit 100, the goods stored within or on carrier unit 100, the source, destination, price and other data regarding the goods or the carrier unit 100, such as shelf-life or storage temperature information for the goods. A computer (not shown) coupled to the interrogating device may utilize this information to track the carrier unit 100 and/or the goods.

These carrier units 100 also come marked or labeled with an optical bar code label 50, known in the art. These one-dimensional or two-dimensional bar codes typically provide only limited information about the carrier unit 100, such as the identity of the source of the carrier unit 100, or the destination of the carrier unit 100 and/or the goods associated therewith

To provide additional information about the carrier units 100 and the goods, RF tags 60 are used. A RF tag 60 is affixed to the goods themselves (not shown), is affixed to an outer surface of the carrier unit 100 as shown, or is embedded within the structure of the carrier unit 100 (not shown).

Still referring to FIG. 1, in general, the present invention utilizes the dual function reader 10 to obtain information regarding a particular carrier unit 100, or regarding the goods stored on or within the carrier unit 100. A selected carrier unit 100 is approached by an operator (not shown) holding the reader 10. The operator then points the reader 10 at the optical bar code 50 on the selected carrier unit 100 and pulls the trigger 14 for an optical read operation. The reader 10 performs an optical read of the optical bar code 50. A successful read causes an indicator light (not shown) associated with the bar code 50 to be illuminated in a blinking pattern, or otherwise. The indicator light is located on the bar code label 50, or is otherwise located on an outer surface of the carrier unit 100 so it is easily observable by the operator. The information obtained by the read operation is displayed on a display window (not shown) on the reader 10.

The operator can then decide to perform a separate RF read operation of any RF tag 60 associated with the carrier unit 100, or with the goods stored in or on the carrier unit 100, based on the information obtained from the optical read operation. If the optical read information reveals that the carrier unit 100 does not contain the type of goods the operator was searching for, then no RF read need be performed and the next carrier unit 100 is selected.

If the optical read operation reveals that the operator has selected the proper carrier unit 100, an RF read operation is performed to obtain additional information about the carrier unit 100 or the goods. The optical read may provide the reader 10 with the specific identification of the carrier unit 100, or the goods, which may include a specific RF tag address for an RF tag 60 disposed on, or within, the carrier unit 100, as previously described. The RF read operation initiates a transmission sequence which is transmitted to the RF tag 60 via the reader 10. Other RF tags in the vicinity associated with other carrier units may also receive the RF transmission sequence, but they do not respond to the transmission signal since their respective specific identification code, or address, has not been transmitted. Only the RF tag 60 having the corresponding identification code or address will respond to the RF transmission signal with a responsive data sequence transmission.

An operator, in accordance with the present invention, can write information to the RF tag 60, as well. The RF tag 60 for a carrier unit 100 may need to be updated with a more current inventory of the goods being stored within, or on, the carrier unit 100. Additionally, if the carrier unit 100 destination changes while in transit, this information could also be updated by the operator. In general, any information included within the RF tag 60 could be modified by an operator, unless it was read-only, or otherwise write protected, data.

FIG. 2 illustrates schematically a typical optical bar code 50 printed on a label. Various formats for bar codes are known to those in the art. Indicator light 52 is disposed on a portion of, or in close proximity to, bar code 50 label. The function of indicator light 52 in regard to the present invention will be explained below.

FIGS. 3-5 illustrate various embodiments of carrier units having an optical bar code 50 label attached thereto. Each figure illustrates a RF tag 60 attached to the respective carrier shown. In FIG. 3, the carrier units are drums 55 which are 55 gallon drums storing solid or liquid chemicals, or other agents. Each drum 55 includes a bar code 50 affixed to, or printed on, an outer surface. Information on the bar code 50 is typically limited to the identity of the contents of the drum 55, with possible additional information concerning the source or destination of the drum 55, and/or the toxicity of its contents. Similarly, a bar code 50 label affixed to, or printed on, the crate 57 of FIG. 4, or on the stacked boxes 56 stored on pallet 53 of FIG. 5, contains only limited information, as previously mentioned.

FIG. 6 illustrates a dual function reader 10 used in accordance with the present invention. The reader 10 includes a gun-shaped housing 12, a handle 16, a trigger 14, a radio frequency (RF) antenna 20, a data entry device 18, a scanning window 22 and a display window 26. Trigger 14 may be a single trigger or a plurality of triggers—one trigger for each of a plurality of dedicated functions, such as an optical read function or a RF read function. Antenna 20 provides two-way RF communication between reader 10 and a RF tag 60, as discussed elsewhere herein. Scanning window 22 allows the bar code scanner circuit 34 (FIG. 7) disposed within reader 10 to illuminate optical bar codes for receipt of the data by reader 10 for storage, processing and/or displaying by reader 10.

The reader 10 is configurable into one of a plurality of functional modes of operation. In one mode of operation, an operator aims reader 10 at the optical bar code 50 of a carrier unit 100. The operator then squeezes trigger 14 on reader 10 to perform an optical read of bar code 50. The operator must be in line of sight of the desired carrier unit 100. If the data received by the optical read, and displayed on the reader 10, indicates the desired carrier unit 100 has been located, the operator then squeezes trigger 14 to perform a RF read of RF tag 60 of carrier unit 100.

In another mode of operation, the operator first squeezes trigger 14 to perform a RF read operation on RF tag 60 of a carrier unit 100. The operator need not be in line of sight of the carrier unit 100. If the RF read operation is successful, and the operator needs to read additional information from the optical code 50, the desired carrier unit 100 is physically located and trigger 14 is squeezed to perform an optical read operation.

In an additional mode of operation, the operator squeezes trigger 14 after locating the desired carrier unit 100 to perform a simultaneous RF read operation and optical read operation on RF tag 60 and optical bar code 50, respectively.

In a still further mode of operation, suited for situations where there are numerous carrier units 100 in close proximity to one another, an operator aims reader 10 at a desired carrier unit 100 and squeezes trigger 14 to first perform an optical read to determine whether the carrier unit being aimed at is the desired carrier unit. Data is obtained from the carrier unit regarding its identification information, contents, destination, etc. Once the reader 10 obtains the identification information from the optical read operation, reader 10 automatically performs a RF communication sequence with the RF tag 60 associated with that desired carrier unit 100. The identification of the RF tag of that desired carrier unit 100 is used during the RF communication sequence to communicate only with the RF tag 60 of the desired carrier unit 100. A RF write operation may also be performed to write data to RF tag 60 via reader 10.

Reader 10 includes a battery pack 38 (FIG. 7) which includes a single battery or a plurality of batteries. The batteries are rechargeable. An optional tether 24 (FIG. 6) connects reader 10 to an external power source (not shown). In a warehouse setting, the tether 24 connects the reader 10 to a power outlet on a forklift or other vehicle, or to a power outlet installed within the warehouse infrastructure. The power outlet may be for an ac or a dc voltage source. The battery pack 38 of the illustrated reader 10 is a dc power source which can be recharged by connecting the tether 24 to an external power source, as described. The data entry device 18 may be a keypad, a liquid crystal display (LCD) touch screen, or other similar data entry device used to manually input data to reader 10. Display window 26 is a light emitting diode (LED) display, a LCD device, a cathode ray tube (CRT) display, or other similar device known in the art for displaying information on a hand-held low power, battery operated device.

Referring to FIG. 7, a block diagram schematic of an embodiment of the internal components of reader 10 is illustrated. Antenna 20 is coupled to RF transceiver 32, which is in turn coupled to processing circuit 36. Optical bar code scanner circuit 34, which is also coupled to processing circuit 36, transmits and receives light signals 42 via scanning window 22 (FIG. 6) of reader 10. Various implementations of optical bar code scanner circuits are known in the art. The data received from the optical read operation of the bar code 50 is provided to the processing circuit 36 by the scanner circuit 34. Processing circuit 36 then forms a transmission signal to be transmitted, via RF transceiver 32, to a RF tag 60 associated with the carrier unit 100 that was optically read. The transmission signal will be specifically addressed to the associated RF tag for the carrier unit based on the address or code obtained during the optical read operation.

If an optical read operation of a bar code is successful, scanner circuit 34 generates a data read signal that is provided to processing circuit 36 to indicate a successful optical read. In another embodiment, processing circuit 36 may itself generate the data read signal for a successful optical read operation of a bar code. In one embodiment, the data read signal is used by processing circuit 36 to generate an enable signal which is provided to RF transceiver 32. This enable signal enables transceiver 32 to perform a RF read operation, upon completion of a successful optical read operation. Processing circuit 36 also includes a manual selection function, selected by an input on data entry device 18 (FIG. 6), which allows either an optical read operation by enabling scanner circuit 34, or allows a RF read operation by enabling RF transceiver 32. It is desirable to limit the use of RF transceiver 32 while reader 10 is powered by battery pack 38 to extend the life of the battery pack 38.

Battery pack 38 supplies power to all the components of reader 10, as illustrated. An external power connection 40 couples to tether 24 (FIG. 6) and supplies power to power regulator circuit 44, shown as part of battery pack 38. Power regulator circuit 44 provides ac to dc conversion functions, current limiting functions, and other functions necessary and known to those in the art for supplying the circuitry of reader 10 with external power from an ac or a dc source. Power regulator circuit 44 may otherwise be formed as a portion of processing circuit 36, or may be a standalone circuit within reader 10.

An automatic backup circuit 46, illustrated as part of processing circuit 36, is utilized to automatically enable RF transceiver 32 if a data read signal is not generated a predetermined period of time after scanner circuit 34 first attempts to read an optical bar code for a selected carrier unit 100. The backup circuit 46 may be configured such that after a certain number of attempts to read a bar code, it would automatically enable RF transceiver 32 and send a message to the display 26 (FIG. 6) of reader 10 that the optical read was unsuccessful and that RF read operation is now enabled. Otherwise, a timeout period could be assigned to an optical scan operation, after which if an optical read is unsuccessful, the RF transceiver 32 could be enabled by automatic backup circuit 46. Automatic backup circuit 46 is disabled while reader 10 is not drawing power from an external power source via external connection 40.

Referring to FIG. 8, a RF tag 60 is illustrated, including an antenna 20, which may be a coil, demodulating circuit 66 and a tag processing circuit 64. Modulating circuit 62 may be as simple a circuit as a transistor coupled to the antenna 20 and connected to ground, such that as the tag transmission sequence is received from processing circuit 64 to be transmitted to reader 10, the logical ones and zeros comprising the tag sequence will cause the transistor to short, or shunt, the antenna 20 to ground when a logical one is received, in one embodiment, or when a logical zero is received, in an alternative embodiment. Processing circuit 64 includes a memory element 68 which stores a tag sequence and other data for RF tag 60. Various other modulating circuits of varying degrees of complexity are well known in the art.

In the operation of RF tag 60, a transmission from reader 10 is received by RF tag 60 via antenna 20 and is provided to demodulation circuit 66 where the signal is demodulated using known methods. The demodulated received signal is then provided to processing circuit 64, which includes storage element 68 which includes data about the carrier unit 100 or the goods stored within or on the carrier unit 100, such as the source, destination, price, preferred storage temperature, current temperature, stress/pressure, biological process analysis, etc. Processing circuit 64 includes logic which determines whether the demodulated received signal is addressing the RF tag 60. If so, a data sequence from storage element 68 is provided to modulating circuit 62 for transmission via antenna 20 to the interrogating reader 10 as a data sequence transmission signal. If RF tag 60 is not being addressing by the reader 10, the demodulated signal will not match the specific address code stored in processing circuit 64 and no responsive data sequence signal will be transmitted by the RF tag 60.

RF tag 60 emits a response to the transmission signal from reader 10 using backscatter modulation to communicate data. An energizing field emitting with the transmission from reader 10 is, in one embodiment, in the form of a carrier wave signal at a fixed frequency. This transmitted energy is received by the coil, or antenna 20, of the RF tag 60, is rectified or otherwise processed by demodulating circuit 66, and is used to power the RF tag 60, which is typically a passive RF tag having no internal power source. RF tag 60 decodes its address in processing circuit 64, matches it against the address, or code, stored in storage element 68, and sends a response if the proper code or address is received and decoded. The response is a modulated RF signal at a frequency different than that of the transmission signal from reader 10. The response signal is typically in the form of a data stream which may include a clock signal and various data regarding the carrier unit, the goods, or both. This generated data sequence may be in the form of a modified manchester encoded signal at a frequency that is shifted from the original transmission signal. The data sequence from RF tag 60 is used to drive a shorting, or shunt, transistor (not shown) connected across the antenna 20. This has the effect of changing the reflectivity of the RF tag antenna 20 and causes some of the received energy from the reader 10, and a clock signal, to be reflected back towards reader 10. The RF tag 60 acts as a field disturbance device by reflecting the incident RF transmission signal from reader 10 in a coded manner. This reflected energy may take the form of data packets.

A simple receiver circuit (not shown) on the RF transceiver 32 (FIG. 7) of reader 10 uses, in one embodiment, the received RF tag 60 clock signal as a local oscillator to decode the received data signal from RF tag 60 to extract the modified manchester encoded data. In other embodiments, the tag sequence is used to directly modulate the signal from RF tag 60 and no clock is transmitted by the RF tag 60.

Information regarding the status of a biological process for goods within the carrier unit is provided by a biological sensor microchip that senses chemical and biological substances in real time. Such a sensor has been developed by Texas Instruments, and is schematically depicted as biological microchip sensor 102 attached to a carrier unit 100 of FIG. 9. The level of E-coli bacteria, for example, could be tracked by the sensor which would provide, in real-time, that information to the RF tag. A RF read of the RF tag by an operator would provide the bacterial information to the reader. The operator could then determine whether the bacteria level is above a safe level.

Referring to FIG. 10, information regarding stress/pressure on a carrier unit 100 could be obtained from information regarding pressure and wall shear stress being applied to one or a plurality of carrier units 100. For example, when a carrier unit 100, particularly a shipping pallet containing a shipping crate 108, is stacked, great pressure and stress is exerted on the bottommost carrier unit and shipping crate 108, which may cause either to fail and break or be crushed. Excessive pressure on the carrier unit 100 would cause damage to the goods within the carrier unit 100 as well, costing time and money to replace the damaged goods and have them reshipped. A micro transducer and/or micromachined pressure microsensor 104 is embedded on or within one or a plurality of carrier units 100. Various configurations of micro transducers and micromachined pressure microsensors are known in the art. Information regarding excessive pressure is read directly from the pressure sensor 104, or is provided to the RF tag 60 on the carrier unit 100. An operator is alerted of the potential failure. In another embodiment, the RF tag 60 or pressure microsensor 104 has a power source 106 which allows microsensor 104 to broadcast the warning, giving the carrier unit identification, to a local base station, described below with regard to FIG. 11. A central computer (not shown) coupled to the base station could then store the warning and/or send an alert message to a system operator.

Referring to FIG. 11, an embodiment of a grid system for a carrier unit location system in accordance with the present invention is illustrated. A warehouse, or other large storage area, may be sectioned into cells. FIG. 11 shows a warehouse building divided into six cells. Many carrier units are typically contained in each cell. If an operator wanted to move a particular carrier unit from the warehouse to load onto a truck, for example, the operator needs to be able to quickly find the carrier unit. Upon arrival at the warehouse, the cell storage location for the carrier unit is recorded, but the exact location within the cell is not. Since each cell may be relatively large, it is important for the operator to be able to quickly ascertain the location of the carrier unit after arriving at the cell of the carrier unit. Each cell may include a base station 75 which can be programmed to send a transmission signal addressed, or otherwise coded, for the specific carrier unit being located. The operator may also initiate the delivery of information regarding the identification of the carrier unit into the base station 75, via keyboard entry directly at the base station 75, or via wireless transmission to the base station 75 from a remote wireless data input device (not shown). A main computer (not shown) coupled to each base station 75 via wired or wireless communication sends the appropriate base station 75 the carrier unit identification information for the that cell.

Regardless of the method used, a base station 75 transmits the transmission signal for the carrier unit, which upon receipt by a RF tag attached to the carrier unit causes an indicator light 52 on the carrier unit to illuminate. The indicator light 52 may be disposed on bar code 50, as shown in FIG. 2, or may otherwise be located in close proximity to the bar code 50. In either embodiment, a small power source 54 and a light sensor 51 are coupled to the indicator light 52. When the light from scanner window 22 of reader 10 is detected by light sensor 51 tuned to detect light of a predetermined frequency, it causes the indicator light 52 to turn on and illuminate. Various implementations of circuitry to perform this function are known in the art. Additionally, the use of small, low powered batteries are known in the art. The illumination may be steady or any on/off or blinking pattern. The indicator light 52 may or may not be located on the optical bar code label, as discussed above. By illuminating the indicator light 52, the specific carrier unit with a given cell is quickly and easily identified. The carrier unit can then be optically read and/or RF read as described above, or simple moved but onto a truck or other transport medium.

In another embodiment, a RF tag enable button 63 (FIG. 2) is attached to the carrier unit. Button 63 may be in close proximity to bar code 50 label for ease of operation. An operator approaches a carrier unit 100 to be read by reader 10, pushes button 63 and reads information from the RF tag 60. Pushing button 63 enables the RF tag 60 to be read by reader 10. Otherwise, without button 63 being pushed, the RF tag 60 does not respond to reader 10.

A small low-powered radio 59 (FIGS. 4 and 5) is attached to the carrier units 57 and 53, respectively, where the radio 59 is configurable to two modes. One mode is a query mode, the other mode is a report mode. In query mode, a base station 75 (FIG. 11) sends an interrogation signal, including identification information, to a specific RF tag 60. The RF tag 60 decodes its own identification code and then transmits its data to the base station. In report mode, radio 59 periodically wakes up and transmits status information to a base station 75 (FIG. 11) or to an access point for a wired or wireless infrastructure network.

In another embodiment, once inside a desired cell (1-6) in the warehouse, the operator inputs the identification number for the carrier unit to be located and the reader 10 then transmits the signal addressed for the particular carrier unit. This step is accomplished prior to the RF read, discussed above. Upon receipt of the transmission signal by an RF tag associated with the carrier unit, indicator light 52 of the desired carrier unit will illuminate, as previously described.

In summary, the present invention includes a system and method which utilizes a dual function reader, which may be a hand-held inventory control device, which first performs an optical read of an optical bar code on a carrier unit, then based on the identification or other information obtained from the optical read a RF read is made of a RF tag attached to, or within, the carrier unit. An indicator light on the carrier unit illuminates when the optical read is completed, which allows an operator to visually verify that the optical read has transpired for the desired carrier unit. The RF tag provides data regarding the inventory of the goods stored within, or on, the carrier unit, the temperature of the goods, the shelf-life of the goods, the source and/or destination of the carrier unit and/or the goods, and other pertinent information. Data can also be written to the RF tag by the reader.

Although a system and method according to the present invention has been described in connection with the preferred embodiment, it is not intended to be limited to the specific form set forth herein, but on the contrary, it is intended to cover such alternatives, modifications, and equivalents, as can be reasonably included within the spirit and scope of the invention as defined by the appended claims.

Claims (47)

What is claimed is:
1. A device for reading information from first and second information tags associated with given goods, said device comprising:
an antenna;
a first processing circuit that generates first information from a first information tag associated with the given goods; and
a second processing circuit, coupled to the antenna, that communicates with a second information tag associated with the given goods, wherein the second information tag is of a different type than the first information tag, and the second processing circuit receives from the second information tag via the antenna more detailed second information more detailed than the first information, with respect to the given goods with which the second information tag is associated:
wherein the reader has a mode of operation where the reader first performs a read operation with respect to the second information tag via the antenna, and then performs a read operation with respect to the first information tag.
2. A device for reading information from first and second information tags associated with given goods, said device comprising:
an antenna;
a first processing circuit that generates first information from a first informaton tag associated with the given goods; and
a second processing circuit, coupled to the antenna, that communicates with a second information tag associated with the given goods, wherein the second information tag is of a different type than the first information tag, and the second processing circuit receives from the second information tag via the antenna more detailed second information more detailed than the first information, with respect to the given goods with which the second information tag is associated;
wherein the reader hag a mode of operation where the reader concurrently performs a read operation with respect to the second information tag via the antenna, and a read operation with respect to the first information tag.
3. A system for providing information with respect to goods, said system comprising
first and second information tags associated with given goods,
a device for reading the first and second information tags, said device comprising:
an antenna;
a first processing circuit that generates first information from the first information tag associated with the given goods; and
a second processing circuit, coupled to the antenna, that communicates with the second information tag associated with the given goods, wherein the second information tag is of a different type than the first information tag, and the second processing circuit receives from the second information tag via the antenna less limited second information less limited then the first information, with respect to the given goods with which the second information tag is associated;
wherein the reader has a mode of operation where the reader first performs a read operation with respect to the second information tag via the antenna, and then performs a read operation with respect to the first information tag.
4. A system for providing information with respect to goods, said system comprising
first and second information tags associated with given goods,
a device for reading the first and second information tags, said device comprising:
an antenna;
a first processing circuit that generates first information from the first information tag associated with the given goods; and
a second processing circuit, coupled to the antenna, that communicates with the second information tag associated with the given goods, wherein the second information tag is of a different type than the first information tag, and the second processing circuit receives from the second information tag via the antenna less limited second information less limited than the first information, with respect to the given goods with which the second information tag is associated;
wherein the reader has a mode of operation where the reader concurrently performs a read operation with respect to the second information tag via the antenna, and a read operation with respect to the first information tag.
5. A method of communicating between a reader device and a carrier unit, wherein the carrier unit includes a plurality of goods stored therewith, includes a first information tag disposed thereon, and includes a second information tag disposed thereon, wherein the second information tag is of a different type and operates in a different frequency spectrum than the first information tag, and wherein the reader device includes a first processing circuit for reading the first information tag, the method comprising the steps of:
reading the first information tag using the reader device operating in a first frequency spectrum to obtain communication control information which enables communication with the second information tag;
establishing communication between the reader device and the second information tag which operates in the different frequency spectrum based upon communication control information received from the reading of the first information tag; and
receiving at the reader device from the second information tag, status information corresponding to the carrier unit.
6. The method of claim 5, wherein the first information tag is an optical target, the second information tag is a radio (RF) tag, and the reader device reads the information from an image of the first information tag so as to receive communication control information which enables communication with the particular radio (RF) tag disposed on the carrier unit along with the first information tag, to the exclusion of other radio (RF) tags not associated with said carrier unit.
7. The method of claim 6, wherein the optical target is an optical bar code which contains the address to be used in addressing the radio (RF) tag disposed on said carrier unit.
8. The method of claim 5, wherein the status information comprises an inventory of the plurality of goods stored with the carrier unit.
9. The method of claim 5, further comprising the steps of:
transmitting new status information from the reader unit to the second information tag; and
storing the status information on the second information tag.
10. The method of claim 5, further comprising the step of transmitting from the second information tag to the reader device at least one location detection signal for geographically locating the carrier unit.
11. The method of claim 5, further comprising the step of communicating with the second information tag via a base station which sends an interrogation signal addressed to the specific second information tag.
12. A device for reading information from first and second information tags associated with given goods, said device comprising:
an antenna;
a first processing circuit that generates first information from a first information tag associated with the given goods, which enables communication with the second information tag; and
a second processing circuit, coupled to the antenna, that communicates with a second information lag associated with the given goods using the first information to establish communication, wherein the second information tag is of a different type than the first information tag, and the second processing circuit receives from the second information tag via the antenna more detailed second information more detailed than the first information, with respect to the given goods with which the second information tag is associated.
13. The device of claim 12, wherein the device further comprises a selector that, depending upon a setting, individually enables or disables the first processing circuit and the second processing circuit.
14. The device of claim 12, wherein the second information tag has a mode of operation where the second information tag is enabled to be read, to the exclusion of other second information tags.
15. The device of claim 12, wherein the reader has a mode of operation where the reader performs a read operation addressed to said second information tag via the antenna, to produce a perceptible indication of the location of the given goods.
16. The device of a claim 12, wherein the second information tag stores a data set, which is associated with the goods with which the second information tag is associated, said data set being selected from the following group of data sets:
a shelf-life of the goods;
a current temperature of the goods;
a preferred storage temperature of the goods;
biological sensor data for the goods; and
pressure sensor date for the goods.
17. The device of claim 12, wherein the second information comprises identification data corresponding to the goods associated with the second information tag.
18. The device of claim 12, wherein the second information comprises identification data corresponding to the goods associated with the second information tag, and the first information relates to a carrier for the goods.
19. The device of claim 12, wherein the second information comprises location data for the goods associated with the second information tag.
20. A systems for providing information with respect to goods, said system comprising
first and second information tags associated with given goods,
a device for reading the first and second information tags, said device comprising:
an antenna;
a first processing circuit that generates from the first information tag associated with the given goods, first information which enables the device to read the second information tag; and
a second processing circuit, coupled to the antenna, that communicates with the second information tag associated with the given goods, wherein the second information tag is of a different type than the first information tag, and the second processing circuit receives from the second information tag via the antenna less limited second information less limited than the first information, with respect to the given goods with which the second information tag is associated.
21. The system of claim 20, wherein the device further comprises a selector that, depending upon a setting, individually enables or disables the first processing circuit and the second processing circuit.
22. The system of claim 20, wherein the second information tag stores a plurality of data sets, each data set being associated with goods with which the second information tag is associated, said data sets being selected from the following group of data sets:
an inventory of the goods;
a shelf-life of the goods;
a current temperature of the goods;
a preferred storage temperature of the goods;
biological sensor data for the goods; and
pressure sensor data for the goods.
23. The system of claim 20, wherein the second information comprises identification data corresponding to the goods with which the second information tog is associated.
24. The system of claim 20, wherein the second information comprises identification data corresponding to the goods associated with the second information tag, and the first information relates to a carrier for the goods.
25. The system of claim 20, wherein the second information comprises location data for the goods associated with the second information tag.
26. The system of claim 20, wherein the reader has a mode of operation where the reader first performs a read operation with respect to the second information tag via the antenna, and then performs a read operation with respect to the first information tag.
27. The system of claim 20, wherein the reader has a mode of operation where the reader concurrently performs a read operation with respect to the second information tag via the antenna, and a read operation with respect to the first information tag.
28. A device that reads a plurality of information tags, the device comprising:
an antenna;
a first processing circuit that generates first information from a first information tag; and
a second processing circuit, coupled to the antenna, that is enabled by the first information to communicate with a second information tag, wherein the second information tag is of different type than the first information tag, and stores more detailed information than the first information tag.
29. The device of claim 28, where the plurality of information tags are associated with given goods, and wherein the second information tag stores a plurality of data sets, said data sets being selected from the following group of data sets:
an inventory of the goods;
a shelf-life of the goods:
a current temperature of the goods;
a preferred storage temperature of the goods;
biological senor data for the goods; and
pressure sensor data for the goods.
30. An identification system for goods stored by a carrier unit, comprising:
a temporary carrier unit for storing articles of commerce;
a plurality of goods stored on the carrier unit;
a first information tag disposed on the carrier unit;
a second information tag disposed on the carrier unit, wherein the second information tag is of a different type than the first information tag; and
a device that reads the first information tag and the second information tag, the device comprising:
an antenna;
a first processing circuit that generates information from the first information tag; and
a second processing circuit, coupled to the antenna, that is enabled by the information to communicate with the second information tag, the second information tag having relatively more detailed information in comparison to the first information tag.
31. The system of claim 30, wherein the second information tag stores a plurality of date sets, each date set being associated with the goods with which the second information tag is associated, said data sets being selected from the following group of data sets:
an inventory of the goods;
a shelf-life of the goods;
a current temperature of the goods;
a preferred storage temperature of the goods;
biological sensor data for the goods; and
pressure sensor data for the goods.
32. A method of communicating between a reader device, and a wireless communication device having an associated optical symbology containing communication control information which enables communication with the wireless communication device via the radio frequency spectrum, the method comprising the steps of:
reading the optical symbology using the reader device operating in an optical spectrum to obtain the communication control information; and
establishing communication via the radio frequency spectrum between the reader device and the wireless communication device based upon the communication enabling communication control information received from the reading of the optical symbology.
33. The method of claim 32, wherein the communication control information from the optical symbology is used to enable addressing the wireless communication device via the radio frequency spectrum.
34. The method of claim 32, wherein the wireless communication device is a radio (RF) tag, and the reader device reads the information from a particular optical symbology associated with a particular radio (RF) tag so as to receive communication control information which enables communication via the radio frequency spectrum with the particular radio (RF) tag to the exclusion of other radio (RF) tags not associated with the particular optical symbology.
35. The method of claim 32, wherein the wireless communication device is a radio (RF) tag, and the reader device reads the information from a particular optical symbology associated with a particular radio (RF) tag so as to receive communication control information which enables communication via the radio frequency spectrum with the particular radio (RF) tag to the exclusion of other radio (RF) tags not associated with the particular optical symbology, the communication control information from the particular optical symbology enabling the addressing via the radio frequency spectrum of the particular radio (RF) tag to the exclusion of radio (RF) tags not associated with the particular optical symbology.
36. A reader device for communication with a wireless communication device operating in the radio frequency spectrum, said reader device comprising
an optical reader for reading a symbology containing communication control information which enables communication via radio frequency transmission with the wireless communication device, and
a radio frequency transmitter for establishing communication with the wireless communication device via radio frequency transmission based on the communication enabling communication control information obtained by the optical reader.
37. The reader device of claim 36, wherein the communication control information from the symbology is used to enable addressing the wireless communication device via the radio frequency transmission.
38. The reader device of claim 36, wherein the wireless communication device is a radio (RF) tag, and the reader device reads the information from a particular symbology associated with a particular radio (RF) tag so as to receive communication control information which enables communication via the radio frequency transmission with the particular radio (RF) tag to the exclusion of other radio (RF) tags not associated with the particular symbology.
39. The reader device of claim 36, wherein the wireless communication device is a radio (RF) tag, and the reader device reads the information from a particular symbology associated with a particular radio (RF) tag so as to receive communication control information which enables communication via the radio frequency transmission with the particular radio (RF) tag to the exclusion of other radio (RF) tags not associated with the particular symbology, the communication control information from the particular symbology enabling the addressing via the radio frequency transmission of the particular radio (RF) tag to the exclusion of radio (RF) tags not associated with the particular symbology.
40. A system comprising
a wireless communication device having an associated optical symbology containing communication control information which enables communication with the wireless communication device via the radio frequency spectrum;
a reader device having an optical reader for reading the optical symbology to obtain the communication enabling communication control information; and
the reader device establishing communication via the radio frequency spectrum with the wireless communication device based upon the communication enabling communication control information received from the reading of the optical symbology.
41. The system of claim 40, wherein the communication control information from the optical symbology is used by the reader device to enable addressing the wireless communication device via the radio frequency spectrum.
42. The system of claim 40, wherein the wireless communication device is a radio (RF) tag, and the reader device reads the information from a particular optical symbology associated with a particular radio (RF) tag so as to receive communication control information which enables communication via the radio frequency spectrum with the particular radio (RF) tag to the exclusion of other radio (RF) tags not associated with the particular optical symbology.
43. The system of claim 40, wherein the wireless communication device is a radio (RF) tag, and the reader device reads the information from a particular optical symbology associated with a particular radio (RF) tag so as to receive communication control information which enables communication via the radio frequency spectrum with the particular radio (RF) tag to the exclusion of other radio (RF) tags not associated with the particular optical symbology, the communication control information from the particular optical symbology being used by the reader device for enabling the addressing via the radio frequency spectrum of the particular radio (RF) tag to the exclusion of other radio (RF) tags not associated with the particular optical symbology.
44. A device for reading information from an optical information source and a wireless information source, said device comprising:
an antenna:
a first processing circuit that in a read operation receives information from the optical information source by the use of optical information transmission; and
a second processing circuit, coupled to the antenna, that in a read operation receives information via the antenna from the wireless information source by the use of radio frequency transmission;
wherein the reader has a mode of operation where the reader first performs a read operation with respect to the wireless information source via the antenna, and then performs a read operation with respect to the optical information source.
45. A device for reading information from an optical information source and a wireless information source, said device comprising:
an antenna,
a first processing circuit that in a read operation receives information from the optical information source by the use of optical information transmission; and
a second processing circuit, coupled to the antenna, that in a read operation receives information via the antenna from the wireless information source by the use of radio frequency transmission;
wherein the reader has a mode of operation where the reader concurrently performs a read operation with respect to the wireless information source via the antenna, and a read operation with respect to the optical information source.
46. An information processing system comprising:
an optical information source that is read in an optical read operation;
a wireless information source that is read in a radio frequency read operation; and
a device for reading information from the optical information source and from the wireless information source, said device comprising:
an antenna;
a first processing circuit that receives information from the optical information source by the use of optical information transmission; and
a second processing circuit, coupled to the antenna, that communicates with the wireless information source, the second processing circuit receiving information via the antenna from the wireless information source by the use of radio frequency transmission;
wherein the reader has a mode of operation where the reader first performs a radio frequency read operation with respect to the wireless information source via the antenna, and then performs an optical read operation with respect to the optical information source.
47. An information processing system comprising:
an optical information source that is read in an optical read operation;
a wireless information source that is read in a radio frequency read operation; and
a device for reading information from the optical information source and from the wireless information source, said device comprising:
an antenna,
a first processing circuit that receives information from the optical information source by the use of optical information transmission; and
a second processing circuit, coupled to the antenna, that communicates with the wireless information source, the second processing circuit receiving information via the antenna from the wireless information source by the use of radio frequency transmission;
wherein the reader has a mode of operation where the reader concurrently performs a radio frequency read operation with respect to the wireless information source via the antenna, and an optical read operation with respect to the optical information source.
US09695718 1998-02-09 2000-10-23 Combined optical and radio frequency tag reader Active US6830181B1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US7414598 true 1998-02-09 1998-02-09
US24746099 true 1999-02-09 1999-02-09
US09695718 US6830181B1 (en) 1998-02-09 2000-10-23 Combined optical and radio frequency tag reader

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09695718 US6830181B1 (en) 1998-02-09 2000-10-23 Combined optical and radio frequency tag reader
US11010630 US7207486B1 (en) 1998-02-09 2004-12-13 Combined optical and radio frequency tag reader

Publications (1)

Publication Number Publication Date
US6830181B1 true US6830181B1 (en) 2004-12-14

Family

ID=33492621

Family Applications (1)

Application Number Title Priority Date Filing Date
US09695718 Active US6830181B1 (en) 1998-02-09 2000-10-23 Combined optical and radio frequency tag reader

Country Status (1)

Country Link
US (1) US6830181B1 (en)

Cited By (82)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020170969A1 (en) * 2001-05-16 2002-11-21 Raj Bridgelall Range extension for RFID hand-held mobile computers
US20030156501A1 (en) * 2002-01-14 2003-08-21 Martin Spindel Trackable storage unit system and method
US20040032443A1 (en) * 2002-08-16 2004-02-19 Moylan Peter Francis Portable printer with RFID read/write capability
US20040145472A1 (en) * 2002-11-15 2004-07-29 Schmidtberg Rupert A. RF identification tag for communicating condition information associated with an item
US20050011003A1 (en) * 2003-06-21 2005-01-20 Davis Philip Nigel Sling attachment device
US20050011948A1 (en) * 2003-07-15 2005-01-20 James Pate Method and apparatus for automatically tracking and communicating data storage device information using RF tags: operating condition, configuration and location
US20050053024A1 (en) * 2003-07-23 2005-03-10 Atmel Germany Gmbh Wireless data transmission between base station and transponder with transmission parameter adjusted based on transponder operating information
US20050139674A1 (en) * 2003-12-24 2005-06-30 International Business Machines Corporation Technique for reading data from a recording medium without contact and processing the read data
US20050139663A1 (en) * 2003-12-08 2005-06-30 Intellident Limited Goods tracking system and method
US20050162274A1 (en) * 2002-01-18 2005-07-28 Moti Shniberg System and methodology for tracking objects using visually sensible indicators
US20050178832A1 (en) * 2004-02-18 2005-08-18 Nec Corporation Information processing device for using bar code and radio frequency-identification tag
US20050230478A1 (en) * 2004-04-15 2005-10-20 Chapman Theodore A RFID encoder and verifier
US20050230479A1 (en) * 2004-04-15 2005-10-20 Printronix, Inc. EPC data manager
US20050269411A1 (en) * 2004-06-07 2005-12-08 Nokia Corporation Indicia reader with synchronized light source and associated methods and computer program product
US20060012481A1 (en) * 2004-07-15 2006-01-19 Savi Technology, Inc. Method and apparatus for control or monitoring of a container
US20060022829A1 (en) * 2004-07-29 2006-02-02 Pan Alfred I Remote communications devices, wireless communications systems, remote communications device operable methods, and retail article monitoring methods
US20060054692A1 (en) * 2004-08-09 2006-03-16 David Dickey Wireless inventory management system and method
US20060106742A1 (en) * 2002-04-29 2006-05-18 Speed Trac Technologies, Inc. System and method for weighing and tracking freight
GB2423615A (en) * 2005-02-25 2006-08-30 Hewlett Packard Development Co Identifier for a memory tag
US20060203838A1 (en) * 2005-03-08 2006-09-14 Howard Richard E EAS tag polling system
US7108183B1 (en) * 2001-02-12 2006-09-19 Cox Jr David W Verification system for the purchase of a retail item and method of using same
US20060208076A1 (en) * 2005-03-04 2006-09-21 Chiu Lihu M Method and system for aiming an RFID reader
US20060221363A1 (en) * 2002-08-16 2006-10-05 Paxar Corporation Hand held portable printer with rfid read write capability
US20060261164A1 (en) * 2002-04-29 2006-11-23 Speed Trac Technologies, Inc. System and Method for Tracking Freight
US20060289645A1 (en) * 2005-06-22 2006-12-28 Symbol Technologies, Inc. System and method for machine readable symbol backup for radio frequency identification tags
US20070040024A1 (en) * 2005-08-16 2007-02-22 Nobuo Murofushi Commodity information registering apparatus and commodity information registering method
US20070057054A1 (en) * 2005-09-14 2007-03-15 Maranov John P Identification device and method
US20070075142A1 (en) * 2005-09-30 2007-04-05 Symbol Technologies, Inc. Mobile computer with integrated UHF RFID reader
US7207486B1 (en) * 1998-02-09 2007-04-24 Intermec Ip Corp. Combined optical and radio frequency tag reader
US20070125836A1 (en) * 2005-08-19 2007-06-07 Mcallister Clarke Handheld and Cartridge-fed Applicator for Commissioning Wireless Sensors
KR100755210B1 (en) 2006-01-24 2007-09-04 주식회사 사라콤 Module for managing goods and apparatus for managing goods including the module
US20070210156A1 (en) * 2002-04-29 2007-09-13 Speed Trac Technologies, Inc. System and Method for Shipping Freight
EP1892648A2 (en) 2006-08-23 2008-02-27 Brother Kogyo Kabushiki Kaisha RFID tag communication apparatus
US7342496B2 (en) 2000-01-24 2008-03-11 Nextreme Llc RF-enabled pallet
US20080128492A1 (en) * 2006-12-01 2008-06-05 Prime Technology Llc Item having a data tag
US20080136591A1 (en) * 2006-12-06 2008-06-12 Russell Calvarese Automatic functionality switch for mobile devices
US20080218353A1 (en) * 2007-03-09 2008-09-11 Savi Technology, Inc. Method and Apparatus Using Magnetic Flux for Container Security
US20090014532A1 (en) * 1998-09-11 2009-01-15 Metrologic Instruments, Inc. Electronic-ink based display system employing a plurality of RF-based activator modules in wireless communication with a plurality of remotely-updateable electronic display devices, each employing an electronic ink layer integrated within a stacked architecture
US20090020607A1 (en) * 2007-07-17 2009-01-22 Dilshan Perera Method for Device Activation
US20090026262A1 (en) * 2007-07-25 2009-01-29 Toshiba Tec Kabushiki Kaisha Article sales data processing apparatus
US20090059004A1 (en) * 2007-08-31 2009-03-05 Speed Trac Technologies, Inc. System and Method for Monitoring the Handling of a Shipment of Freight
US20090174528A1 (en) * 2006-08-21 2009-07-09 Brother Kogyo Kabushiki Kaisha Apparatus for communicating with RFID tag using optical information
US20090314829A1 (en) * 2007-05-22 2009-12-24 Mcallistor Clarke Systems, Methods, and Devices for Replication of Data onto Wireless Sensors
US20100004772A1 (en) * 2006-07-10 2010-01-07 Advanced Technology Materials, Inc. Systems and methods for managing material storage vessels having information storage elements
US7661591B2 (en) 2000-10-20 2010-02-16 Promega Corporation RF point of sale and delivery method and system using communication with remote computer and having features to read a large number of RF tags
US20100079239A1 (en) * 2008-09-29 2010-04-01 Riddhiman Ghosh Repurposing User Identity Tokens
US7702538B2 (en) 2000-08-01 2010-04-20 Jpmorgan Chase Bank, N.A. System and method for transponder-enabled account transactions
EP2179931A1 (en) 2008-10-23 2010-04-28 Avery Dennison Corporation Hand-held portable printer system and method
US7710275B2 (en) 2007-03-16 2010-05-04 Promega Corporation RFID reader enclosure and man-o-war RFID reader system
US20100109850A1 (en) * 2006-08-23 2010-05-06 Hunter Douglas Inc. Dual control system and method
US7735732B2 (en) 2000-10-20 2010-06-15 Promega Corporation Radio frequency identification method and system of distributing products
US20100156640A1 (en) * 2008-12-19 2010-06-24 Forster Ian J Optical control of rfid chips
US20100161009A1 (en) * 2008-12-19 2010-06-24 Avery Dennison Corporation Apparatus and methods for treating a wound
US7752980B2 (en) 2000-01-24 2010-07-13 Nextreme Llc Material handling apparatus having a reader/writer
US7791489B2 (en) 2003-09-03 2010-09-07 Metrologic Instruments, Inc. Electronic-ink based RFID tag for attachment to a consumer item and displaying graphical indicia indicating whether or not said consumer items has been read and its integrated RFID module has been activated or deactivated
USD626949S1 (en) 2008-02-20 2010-11-09 Vocollect Healthcare Systems, Inc. Body-worn mobile device
US20100283584A1 (en) * 2005-08-19 2010-11-11 Mcallister Clarke William Systems, Methods, and Devices for Commissioning Wireless Sensors.
US20100327060A1 (en) * 2008-02-19 2010-12-30 Bilcare Technologies Singapore Pte. Ltd. Reading device for identifying a tag or an object adapted to be identified, related methods and systems
CN102024164A (en) * 2010-12-06 2011-04-20 上海大学 Radio frequency identification management system for polycrystalline diamond cutter
US20110091216A1 (en) * 2009-10-20 2011-04-21 Ken Addy Long range selective rfid using laser photodetection wakeup
USD643013S1 (en) 2010-08-20 2011-08-09 Vocollect Healthcare Systems, Inc. Body-worn mobile device
USD643400S1 (en) 2010-08-19 2011-08-16 Vocollect Healthcare Systems, Inc. Body-worn mobile device
WO2011126697A1 (en) 2010-04-08 2011-10-13 Checkpoint Systems, Inc. Auto -accreting database for eas-rf applications
US8077040B2 (en) 2000-01-24 2011-12-13 Nextreme, Llc RF-enabled pallet
US8128422B2 (en) 2002-06-27 2012-03-06 Vocollect, Inc. Voice-directed portable terminals for wireless communication systems
US8234507B2 (en) 2009-01-13 2012-07-31 Metrologic Instruments, Inc. Electronic-ink display device employing a power switching mechanism automatically responsive to predefined states of device configuration
US8386261B2 (en) 2008-11-14 2013-02-26 Vocollect Healthcare Systems, Inc. Training/coaching system for a voice-enabled work environment
US8457013B2 (en) 2009-01-13 2013-06-04 Metrologic Instruments, Inc. Wireless dual-function network device dynamically switching and reconfiguring from a wireless network router state of operation into a wireless network coordinator state of operation in a wireless communication network
US20140048593A1 (en) * 2012-07-10 2014-02-20 Translogic Corporation System and method for tracking chain of custody in automated delivery system in a hospital setting
US8659397B2 (en) 2010-07-22 2014-02-25 Vocollect, Inc. Method and system for correctly identifying specific RFID tags
US8849448B2 (en) 2001-06-13 2014-09-30 Advanced Technology Materials, Inc. Liquid handling system with electronic information storage
WO2015009979A1 (en) * 2013-07-17 2015-01-22 Lefevre Donald Long-range electronic identification system
US9049641B2 (en) 2012-04-10 2015-06-02 Geoforce, Inc. Apparatus and method for radio frequency silencing in oil and gas operations, excavation sites, and other environments
US9082102B2 (en) * 2012-04-10 2015-07-14 Geoforce, Inc. System and method for remote equipment data management
US9225383B2 (en) 2012-03-14 2015-12-29 Geoforce, Inc. System and method for implementation of a direct sequence spread spectrum transmitter
US9272805B2 (en) 2005-08-19 2016-03-01 Adasa Inc. Systems, methods, and devices for commissioning wireless sensors
US20160188714A1 (en) * 2014-12-31 2016-06-30 Audioeye, Inc. Tracking device for audio playback
US9500663B2 (en) 2014-11-11 2016-11-22 Genmark Diagnostics, Inc. Redundant identification for sample tracking on a diagnostic device
US9747480B2 (en) 2011-12-05 2017-08-29 Adasa Inc. RFID and robots for multichannel shopping
US9780435B2 (en) 2011-12-05 2017-10-03 Adasa Inc. Aerial inventory antenna
US9916555B2 (en) 2012-04-10 2018-03-13 Geoforce, Inc. Location tracking with integrated identification of cargo carrier contents and related system and method
US9922384B2 (en) 2012-05-02 2018-03-20 William Robert Cobb Pharmaceutical will call system and method

Citations (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4679154A (en) * 1985-07-09 1987-07-07 Ncr Corporation Scanning control system for merchandise checkout
US4937581A (en) * 1980-02-13 1990-06-26 Eid Electronic Identification Systems Ltd. Electronic identification system
US5059951A (en) * 1988-11-14 1991-10-22 Checkpoint Systems, Inc. Method and apparatus for integrated data capture and electronic article surveillance
US5151684A (en) * 1991-04-12 1992-09-29 Johnsen Edward L Electronic inventory label and security apparatus
US5216233A (en) * 1989-03-09 1993-06-01 Norand Corporation Versatile RF terminal-scanner system
US5218187A (en) * 1990-01-18 1993-06-08 Norand Corporation Hand-held data capture system with interchangeable modules
US5280159A (en) * 1989-03-09 1994-01-18 Norand Corporation Magnetic radio frequency tag reader for use with a hand-held terminal
US5382784A (en) * 1993-02-08 1995-01-17 Indala Corporation Hand-held dual technology identification tag reading head
US5557096A (en) * 1991-05-07 1996-09-17 Nippondenso Co., Ltd. Multiple sheet electronic delivery tag
US5565858A (en) * 1994-09-14 1996-10-15 Northrop Grumman Corporation Electronic inventory system for stacked containers
US5633487A (en) * 1995-12-15 1997-05-27 Adaptive Optics Associates, Inc. Multi-focal vision system
US5686888A (en) * 1995-06-07 1997-11-11 General Electric Company Use of mutter mode in asset tracking for gathering data from cargo sensors
US5801371A (en) * 1995-03-20 1998-09-01 Symbol Technologies, Inc. Optical reader with independent triggering and graphical user interface
US5811784A (en) * 1995-06-26 1998-09-22 Telxon Corporation Extended working range dataform reader
US5825045A (en) * 1992-02-13 1998-10-20 Norand Corporation Extended range highly selective low power consuming data tag and information display system
JPH10340389A (en) * 1997-06-06 1998-12-22 Toshinori Okuno Sales management system for self service type restaurant
US5874724A (en) * 1997-01-10 1999-02-23 International Business Machines Corporation Light selectable radio frequency identification tag and method therefor
US5962834A (en) * 1997-03-17 1999-10-05 Markman; Herbert L. Inventory tracking and management apparatus with multi-function encoding unit
US5979758A (en) * 1988-08-25 1999-11-09 Symbol Technologies, Inc. Self-checkout point-of-transaction system including deactivatable electro-optically coded surveillance tags
US5999294A (en) * 1997-03-13 1999-12-07 Aironet Wireless Communications, Inc. Detachable antenna with optical port
US6036348A (en) * 1994-08-03 2000-03-14 Matsushita Electric Industrial Co., Ltd. Luggage management system
US6056169A (en) * 1995-09-04 2000-05-02 Valois S.A. Inhaler apparatus for dispensing accurate and reproducible doses of powder
US6056199A (en) * 1995-09-25 2000-05-02 Intermec Ip Corporation Method and apparatus for storing and reading data
US6109526A (en) * 1998-11-17 2000-08-29 Intermec Ip Corp. Optical and passive electromagnetic reader for reading machine-readable symbols, such as bar codes, and reading wireless tags, such as radio frequency tags, and corresponding method
US6269342B1 (en) * 1995-04-28 2001-07-31 Telxon Corporation Programmable shelf tag system
US6318631B1 (en) * 1998-04-13 2001-11-20 Eldat Communication Ltd. Scanning communicator
US6332098B2 (en) * 1998-08-07 2001-12-18 Fedex Corporation Methods for shipping freight
US20010054005A1 (en) * 1995-03-24 2001-12-20 Hook Christopher D. Programmable shelf tag and method for changing and updating shelf tag information
US6371375B1 (en) * 1995-09-25 2002-04-16 Intermec Ip Corp. Method and apparatus for associating data with a wireless memory device

Patent Citations (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4937581A (en) * 1980-02-13 1990-06-26 Eid Electronic Identification Systems Ltd. Electronic identification system
US4679154A (en) * 1985-07-09 1987-07-07 Ncr Corporation Scanning control system for merchandise checkout
US5979758A (en) * 1988-08-25 1999-11-09 Symbol Technologies, Inc. Self-checkout point-of-transaction system including deactivatable electro-optically coded surveillance tags
US5059951A (en) * 1988-11-14 1991-10-22 Checkpoint Systems, Inc. Method and apparatus for integrated data capture and electronic article surveillance
US5216233A (en) * 1989-03-09 1993-06-01 Norand Corporation Versatile RF terminal-scanner system
US5280159A (en) * 1989-03-09 1994-01-18 Norand Corporation Magnetic radio frequency tag reader for use with a hand-held terminal
US5218187A (en) * 1990-01-18 1993-06-08 Norand Corporation Hand-held data capture system with interchangeable modules
US5151684A (en) * 1991-04-12 1992-09-29 Johnsen Edward L Electronic inventory label and security apparatus
US5557096A (en) * 1991-05-07 1996-09-17 Nippondenso Co., Ltd. Multiple sheet electronic delivery tag
US5825045A (en) * 1992-02-13 1998-10-20 Norand Corporation Extended range highly selective low power consuming data tag and information display system
US5382784A (en) * 1993-02-08 1995-01-17 Indala Corporation Hand-held dual technology identification tag reading head
US6036348A (en) * 1994-08-03 2000-03-14 Matsushita Electric Industrial Co., Ltd. Luggage management system
US5565858A (en) * 1994-09-14 1996-10-15 Northrop Grumman Corporation Electronic inventory system for stacked containers
US5801371A (en) * 1995-03-20 1998-09-01 Symbol Technologies, Inc. Optical reader with independent triggering and graphical user interface
US20010054005A1 (en) * 1995-03-24 2001-12-20 Hook Christopher D. Programmable shelf tag and method for changing and updating shelf tag information
US6269342B1 (en) * 1995-04-28 2001-07-31 Telxon Corporation Programmable shelf tag system
US5686888A (en) * 1995-06-07 1997-11-11 General Electric Company Use of mutter mode in asset tracking for gathering data from cargo sensors
US5811784A (en) * 1995-06-26 1998-09-22 Telxon Corporation Extended working range dataform reader
US6056169A (en) * 1995-09-04 2000-05-02 Valois S.A. Inhaler apparatus for dispensing accurate and reproducible doses of powder
US6056199A (en) * 1995-09-25 2000-05-02 Intermec Ip Corporation Method and apparatus for storing and reading data
US6371375B1 (en) * 1995-09-25 2002-04-16 Intermec Ip Corp. Method and apparatus for associating data with a wireless memory device
US5633487A (en) * 1995-12-15 1997-05-27 Adaptive Optics Associates, Inc. Multi-focal vision system
US5874724A (en) * 1997-01-10 1999-02-23 International Business Machines Corporation Light selectable radio frequency identification tag and method therefor
US5999294A (en) * 1997-03-13 1999-12-07 Aironet Wireless Communications, Inc. Detachable antenna with optical port
US5962834A (en) * 1997-03-17 1999-10-05 Markman; Herbert L. Inventory tracking and management apparatus with multi-function encoding unit
JPH10340389A (en) * 1997-06-06 1998-12-22 Toshinori Okuno Sales management system for self service type restaurant
US6318631B1 (en) * 1998-04-13 2001-11-20 Eldat Communication Ltd. Scanning communicator
US6332098B2 (en) * 1998-08-07 2001-12-18 Fedex Corporation Methods for shipping freight
US6109526A (en) * 1998-11-17 2000-08-29 Intermec Ip Corp. Optical and passive electromagnetic reader for reading machine-readable symbols, such as bar codes, and reading wireless tags, such as radio frequency tags, and corresponding method

Cited By (179)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7207486B1 (en) * 1998-02-09 2007-04-24 Intermec Ip Corp. Combined optical and radio frequency tag reader
US20090014532A1 (en) * 1998-09-11 2009-01-15 Metrologic Instruments, Inc. Electronic-ink based display system employing a plurality of RF-based activator modules in wireless communication with a plurality of remotely-updateable electronic display devices, each employing an electronic ink layer integrated within a stacked architecture
US7762462B2 (en) 1998-09-11 2010-07-27 Metrologic Instruments, Inc. Electronic information display system employing a plurality of electronic-ink display labels associated with a plurality of manufactured items for displaying information which changes as the manufactured items move through wholesale/retail distribution channels
US7757954B2 (en) 1998-09-11 2010-07-20 Metrologic Instruments, Inc. Remotely-alterable flexible electronic display device employing an electronic-ink layer integrated within a stacked-layer architecture
US7753276B2 (en) 1998-09-11 2010-07-13 Metrologic Instruments, Inc. Electronic-ink based multi-purpose board game employing a game board and game pieces with an electronic-ink display structure
US20090026274A1 (en) * 1998-09-11 2009-01-29 Metrologic Instruments, Inc. Electronic product price display system for installation in a retail environment and employing a plurality of electronic-ink display labels associated with a plurality of consumer products, for displaying price and/or promotional information remotely programmed using one or more activator modules installed within said retail environment
US7753277B2 (en) 1998-09-11 2010-07-13 Metrologic Instruments, Inc. User-operable actuation device employing an updateable electronic-ink display label
US7748627B2 (en) 1998-09-11 2010-07-06 Metrologic Instruments, Inc. Card-sized electronic data storage device employing an electronic-ink layer for displaying graphical indicia
US7748626B2 (en) 1998-09-11 2010-07-06 Metrologic Instruments, Inc. Electronic menu display system employing a plurality of portable menus, each including an electronic-ink display label for displaying information updated by one or more activator modules within the restaurant
US7743987B2 (en) 1998-09-11 2010-06-29 Metrologic Instruments, Inc. Electronic-ink based label system employing a plurality of remote activator modules in communication with a plurality of remotely-updateable electronic-ink display labels each assigned unique encryption keys for allowing only a subset of said labels to receive a broadcasted message from a common encrypted message broadcast signal
US7784701B2 (en) 1998-09-11 2010-08-31 Metrologic Instruments, Inc. Electronic product price display system for installation in a retail environment and employing a plurality of electronic-ink display labels associated with a plurality of consumer products, for displaying price and/or promotional information remotely programmed using one or more activator modules installed within said retail environment
US7735736B2 (en) 1998-09-11 2010-06-15 Metrologic Instruments, Inc. Remotely-alterable electronic display device employing an electronic-ink layer integrated within a stacked-layer architecture
US7766238B2 (en) 1998-09-11 2010-08-03 Metrologic Instruments, Inc. Electronic shipping container labeling system for labeling a plurality of shipping containers transported through a shipping system, using electronic-ink shipping labels displaying information regarding said shipping containers, and remotely updated by one or more activator modules
US7735735B2 (en) 1998-09-11 2010-06-15 Metrologic Instruments, Inc. Electronic-ink based display system employing a plurality of RF-based activator modules in wireless communication with a plurality of remotely-updateable electronic display devices, each employing an electronic ink layer integrated within a stacked architecture
US7673800B2 (en) 1998-09-11 2010-03-09 Metrologic Instruments, Inc. Remotely-alterable radio-frequency (RF) powered electronic display label employing an electronic ink layer integrated within a stacked-layer architecture
US7703678B2 (en) 1998-09-11 2010-04-27 Metrologic Instruments, Inc. Electronic monetary instrument employing an electronic-ink layer for visually displaying the monetary value thereof in a particular currency
US7677454B2 (en) 1998-09-11 2010-03-16 Metrologic Instruments, Inc. Digital information recording media system including a digital information recording media device with an electronic-ink display label for displaying information related to said digital information recording media device and/or digital information recorded thereon
US7669768B2 (en) 1998-09-11 2010-03-02 Metrologic Instruments, Inc. Remotely-alterable electronic display label employing an electronic ink layer integrated within a stacked-layer architecture employing an antenna layer and an integrated circuit layer supporting an on-board battery power component, and a programmed processor for determining graphical indicia to be displayed by said electronic ink layer in response to electromagnetic signals received from said antenna
US7762461B2 (en) 1998-09-11 2010-07-27 Metrologic Instruments, Inc. Remotely-alterable wireless electronic display device employing an electronic ink layer integrated within a stacked-layer architecture, including an activation grid matrix layer and transmitting and receiving antenna layers
US8054218B2 (en) 1998-09-11 2011-11-08 Metrologic Instruments, Inc. Remotely-alterable electronic-ink based display device employing an integrated circuit structure having a GPS signal receiver and programmed processor for locally determining display device position and transmitting determined position information to a remote activator module
US7815116B2 (en) 1998-09-11 2010-10-19 Metrologic Instruments, Inc. Electronic tagging system for tagging a plurality of luggage items transported through a transportation system, using electronic-ink display tags for displaying real-time information regarding said luggage items, and remotely programmable by activator modules installed throughout said transportion system
US7871001B2 (en) 1998-09-11 2011-01-18 Metrologic Instruments, Inc. Remotely-alterable electronic-ink based display device employing an electronic-ink layer integrated within a stacked architecture
US7891569B2 (en) 1998-09-11 2011-02-22 Metrologic Instruments, Inc. Electronic-ink based display device employing an electronic-ink layer integrated within a stacked architecture
US7913908B2 (en) 1998-09-11 2011-03-29 Metrologic Instruments, Inc. Electronic-ink based display tagging system employing a plurality electronic-ink display tags having a stacked architecture and being powered and programmed by a portable tag activation module
US7798404B2 (en) 1998-09-11 2010-09-21 Metrologic Instruments, Inc. Electronic admission pass system employing a plurality of updateable electronic-ink admission passes and one or more activator modules
US7918396B2 (en) 1998-09-11 2011-04-05 Metrologic Instruments, Inc. Electronic-ink based information organizing device employing an activator module mounted beneath the surface of an electronic-ink display structure
US7918395B2 (en) 1998-09-11 2011-04-05 Metrologic Instruments, Inc. Electronic product identification and price display system employing electronic-ink display labels having a stacked architecture for visually displaying the price and/or promotional information for said consumer product, remotely updated by one or more remote activator modules installed within the retail environment
US7658329B2 (en) 1998-09-11 2010-02-09 Metrologic Instruments, Inc. Consumer product package bearing a remotely-alterable radio-frequency (RF) powered electronic display label employing an electronic ink layer integrated within a stacked-layer architecture
US7946489B2 (en) 1998-09-11 2011-05-24 Metrologic Instruments, Inc. Electronic-ink based writing/drawing and display device employing an activator module mounted beneath the surface of an electronic-ink display structure
US7948371B2 (en) 2000-01-24 2011-05-24 Nextreme Llc Material handling apparatus with a cellular communications device
US7804400B2 (en) 2000-01-24 2010-09-28 Nextreme, Llc Thermoformed platform having a communications device
US7342496B2 (en) 2000-01-24 2008-03-11 Nextreme Llc RF-enabled pallet
US7789024B2 (en) 2000-01-24 2010-09-07 Nextreme, Llc Thermoformed platform having a communications device
US8585850B2 (en) 2000-01-24 2013-11-19 Nextreme, Llc Thermoformed platform having a communications device
US7752980B2 (en) 2000-01-24 2010-07-13 Nextreme Llc Material handling apparatus having a reader/writer
US9230227B2 (en) 2000-01-24 2016-01-05 Nextreme, Llc Pallet
US8077040B2 (en) 2000-01-24 2011-12-13 Nextreme, Llc RF-enabled pallet
US8781904B2 (en) 2000-08-01 2014-07-15 Jpmorgan Chase Bank, N.A. System and method for transponder-enabled account transactions
US7702538B2 (en) 2000-08-01 2010-04-20 Jpmorgan Chase Bank, N.A. System and method for transponder-enabled account transactions
US8781905B2 (en) 2000-08-01 2014-07-15 Jpmorgan Chase Bank, N.A. System and method for transponder-enabled account transactions
US7784689B2 (en) 2000-10-20 2010-08-31 Promega Corporation Radio frequency identification method and system of distributing products
US7967199B2 (en) 2000-10-20 2011-06-28 Promega Corporation Radio frequency identification method and system of distributing products
US8025228B2 (en) 2000-10-20 2011-09-27 Promega Corporation RF point of sale and delivery method and system using communication with remote computer and having features to read a large number of RF tags
US7661591B2 (en) 2000-10-20 2010-02-16 Promega Corporation RF point of sale and delivery method and system using communication with remote computer and having features to read a large number of RF tags
USRE46326E1 (en) 2000-10-20 2017-02-28 Promega Corporation RF point of sale and delivery method and system using communication with remote computer and having features to read a large number of RF tags
US8231053B2 (en) 2000-10-20 2012-07-31 Promega Corporation Radio frequency identification method and system of distributing products
US7735732B2 (en) 2000-10-20 2010-06-15 Promega Corporation Radio frequency identification method and system of distributing products
US8113425B2 (en) 2000-10-20 2012-02-14 Promega Corporation RF point of sale and delivery method and system using communication with remote computer and having features to read a large number of RF tags
US7791479B2 (en) 2000-10-20 2010-09-07 Promega Corporation RFID point of sale and delivery method and system
US7942321B2 (en) 2000-10-20 2011-05-17 Promega Corporation Radio frequency identification method and system of disturbing products
US7108183B1 (en) * 2001-02-12 2006-09-19 Cox Jr David W Verification system for the purchase of a retail item and method of using same
US7175093B2 (en) * 2001-05-16 2007-02-13 Symbol Technologies, Inc. Range extension for RFID hand-held mobile computers
US20020170969A1 (en) * 2001-05-16 2002-11-21 Raj Bridgelall Range extension for RFID hand-held mobile computers
US8849448B2 (en) 2001-06-13 2014-09-30 Advanced Technology Materials, Inc. Liquid handling system with electronic information storage
US9618942B2 (en) 2001-06-13 2017-04-11 Entegris, Inc. Liquid handling system with electronic information storage
US20030156501A1 (en) * 2002-01-14 2003-08-21 Martin Spindel Trackable storage unit system and method
US7262792B2 (en) * 2002-01-18 2007-08-28 Imageid System and methodology for tracking objects using visually sensible indicators
US20050162274A1 (en) * 2002-01-18 2005-07-28 Moti Shniberg System and methodology for tracking objects using visually sensible indicators
US20070210156A1 (en) * 2002-04-29 2007-09-13 Speed Trac Technologies, Inc. System and Method for Shipping Freight
US20060106742A1 (en) * 2002-04-29 2006-05-18 Speed Trac Technologies, Inc. System and method for weighing and tracking freight
US7798402B2 (en) 2002-04-29 2010-09-21 Bochicchio Joseph M System and method for shipping freight
US20060261164A1 (en) * 2002-04-29 2006-11-23 Speed Trac Technologies, Inc. System and Method for Tracking Freight
US8128422B2 (en) 2002-06-27 2012-03-06 Vocollect, Inc. Voice-directed portable terminals for wireless communication systems
US7180627B2 (en) 2002-08-16 2007-02-20 Paxar Corporation Hand-held portable printer with RFID read/write capability
US7609406B2 (en) * 2002-08-16 2009-10-27 Avery Dennison Retail Information Services, Llc Hand held portable printer with RFID read write capability
US20060221363A1 (en) * 2002-08-16 2006-10-05 Paxar Corporation Hand held portable printer with rfid read write capability
US20040032443A1 (en) * 2002-08-16 2004-02-19 Moylan Peter Francis Portable printer with RFID read/write capability
US20040145472A1 (en) * 2002-11-15 2004-07-29 Schmidtberg Rupert A. RF identification tag for communicating condition information associated with an item
US7278571B2 (en) * 2002-11-15 2007-10-09 Sensitech Inc. Methods and apparatus for communicating condition information associated with an item
US7091861B2 (en) 2002-11-15 2006-08-15 Sensitech Inc. RF identification tag for communicating condition information associated with an item
US20040155106A1 (en) * 2002-11-15 2004-08-12 Schmidtberg Rupert A. Methods and apparatus for communicating condition information associated with an item
US20050011003A1 (en) * 2003-06-21 2005-01-20 Davis Philip Nigel Sling attachment device
US20050011948A1 (en) * 2003-07-15 2005-01-20 James Pate Method and apparatus for automatically tracking and communicating data storage device information using RF tags: operating condition, configuration and location
US7478758B2 (en) * 2003-07-15 2009-01-20 Lsi Corporation Method and apparatus for automatically tracking and communicating data storage device information using RF tags: operating condition, configuration and location
US20050053024A1 (en) * 2003-07-23 2005-03-10 Atmel Germany Gmbh Wireless data transmission between base station and transponder with transmission parameter adjusted based on transponder operating information
US7986653B2 (en) * 2003-07-23 2011-07-26 Atmel Corporation Wireless data transmission between base station and transponder with transmission parameter adjusted based on transponder operating information
US7791489B2 (en) 2003-09-03 2010-09-07 Metrologic Instruments, Inc. Electronic-ink based RFID tag for attachment to a consumer item and displaying graphical indicia indicating whether or not said consumer items has been read and its integrated RFID module has been activated or deactivated
US20050139663A1 (en) * 2003-12-08 2005-06-30 Intellident Limited Goods tracking system and method
US7267270B2 (en) * 2003-12-08 2007-09-11 Intellident Limited Goods tracking system and method
US20050139674A1 (en) * 2003-12-24 2005-06-30 International Business Machines Corporation Technique for reading data from a recording medium without contact and processing the read data
US7762460B2 (en) * 2004-02-18 2010-07-27 Nec Corporation Information processing device for using bar code and radio frequency-identification tag
US20050178832A1 (en) * 2004-02-18 2005-08-18 Nec Corporation Information processing device for using bar code and radio frequency-identification tag
US7114654B2 (en) * 2004-04-15 2006-10-03 Printronix RFID encoder and verifier
US20050230479A1 (en) * 2004-04-15 2005-10-20 Printronix, Inc. EPC data manager
US7114655B2 (en) * 2004-04-15 2006-10-03 Printronix EPC data manager
US20050230478A1 (en) * 2004-04-15 2005-10-20 Chapman Theodore A RFID encoder and verifier
US20050269411A1 (en) * 2004-06-07 2005-12-08 Nokia Corporation Indicia reader with synchronized light source and associated methods and computer program product
US7229021B2 (en) * 2004-06-07 2007-06-12 Nokia Corporation Indicia reader with synchronized light source and associated methods and computer program product
US20070205283A1 (en) * 2004-06-07 2007-09-06 Nokia Corporation Indicia reader with synchronized light source and associated methods and computer program product
US8258950B2 (en) * 2004-07-15 2012-09-04 Savi Technology, Inc. Method and apparatus for control or monitoring of a container
US20060012481A1 (en) * 2004-07-15 2006-01-19 Savi Technology, Inc. Method and apparatus for control or monitoring of a container
US20060022829A1 (en) * 2004-07-29 2006-02-02 Pan Alfred I Remote communications devices, wireless communications systems, remote communications device operable methods, and retail article monitoring methods
US7129844B2 (en) * 2004-07-29 2006-10-31 Hewlett-Packard Development Company, L.P. Remote communications devices, wireless communications systems, remote communications device operable methods, and retail monitoring methods
US20060054692A1 (en) * 2004-08-09 2006-03-16 David Dickey Wireless inventory management system and method
US7789307B2 (en) 2005-02-25 2010-09-07 Hewlett-Packard Development Company, L.P. Identifier for memory tags
GB2423615A (en) * 2005-02-25 2006-08-30 Hewlett Packard Development Co Identifier for a memory tag
US20060208089A1 (en) * 2005-02-25 2006-09-21 Hewlett-Packard Development Company, L.P. Identifier for memory tags
US7513431B2 (en) * 2005-03-04 2009-04-07 Printronix, Inc. Method and system for aiming an RFID reader
US20080061147A1 (en) * 2005-03-04 2008-03-13 Chiu Lihu M Method and system for aiming an rfid reader
US20060208076A1 (en) * 2005-03-04 2006-09-21 Chiu Lihu M Method and system for aiming an RFID reader
US7755485B2 (en) 2005-03-08 2010-07-13 Inpoint Systems, Inc. System and method for electronic article surveillance
WO2006096832A3 (en) * 2005-03-08 2009-04-16 Pnp Networks Inc A California Eas tag polling system
US20060203838A1 (en) * 2005-03-08 2006-09-14 Howard Richard E EAS tag polling system
WO2006096832A2 (en) * 2005-03-08 2006-09-14 Pnp Networks, Inc., A California Corporation Eas tag polling system
EP1894137A4 (en) * 2005-06-22 2010-11-10 Symbol Technologies Inc System and method for machine readable symbol backup for radio frequency identification tags
US20060289645A1 (en) * 2005-06-22 2006-12-28 Symbol Technologies, Inc. System and method for machine readable symbol backup for radio frequency identification tags
EP1894137A1 (en) * 2005-06-22 2008-03-05 Symbol Technologies, Inc. System and method for machine readable symbol backup for radio frequency identification tags
US7290717B2 (en) 2005-06-22 2007-11-06 Symbol Technologies, Inc. System and method for machine readable symbol backup for radio frequency identification tags
WO2007001666A1 (en) * 2005-06-22 2007-01-04 Symbol Technologies, Inc. System and method for machine readable symbol backup for radio frequency identification tags
US20070194125A1 (en) * 2005-08-16 2007-08-23 Nobuo Murofushi Commodity information registering apparatus and commodity information registering method
US20070040024A1 (en) * 2005-08-16 2007-02-22 Nobuo Murofushi Commodity information registering apparatus and commodity information registering method
US7222785B2 (en) * 2005-08-16 2007-05-29 Toshiba Tec Kabushiki Kaisha Commodity information registering apparatus and commodity information registering method
US7413122B2 (en) 2005-08-16 2008-08-19 Toshiba Tec Kabushiki Kaisha Commodity information registering apparatus and commodity information registering method
US7551087B2 (en) * 2005-08-19 2009-06-23 Adasa, Inc. Handheld and cartridge-fed applicator for commissioning wireless sensors
US8228198B2 (en) 2005-08-19 2012-07-24 Adasa Inc. Systems, methods, and devices for commissioning wireless sensors
US9272805B2 (en) 2005-08-19 2016-03-01 Adasa Inc. Systems, methods, and devices for commissioning wireless sensors
US20100283584A1 (en) * 2005-08-19 2010-11-11 Mcallister Clarke William Systems, Methods, and Devices for Commissioning Wireless Sensors.
US20070125836A1 (en) * 2005-08-19 2007-06-07 Mcallister Clarke Handheld and Cartridge-fed Applicator for Commissioning Wireless Sensors
US7546948B2 (en) 2005-09-14 2009-06-16 Meadwestvaco Corporation Identification device and method
US20070057054A1 (en) * 2005-09-14 2007-03-15 Maranov John P Identification device and method
US20070075142A1 (en) * 2005-09-30 2007-04-05 Symbol Technologies, Inc. Mobile computer with integrated UHF RFID reader
KR100755210B1 (en) 2006-01-24 2007-09-04 주식회사 사라콤 Module for managing goods and apparatus for managing goods including the module
EP2352113A1 (en) 2006-05-15 2011-08-03 Paxar Corporation Hand-held portable printer with RFID read/write capability
US20100004772A1 (en) * 2006-07-10 2010-01-07 Advanced Technology Materials, Inc. Systems and methods for managing material storage vessels having information storage elements
US9031683B2 (en) * 2006-07-10 2015-05-12 Entegris, Inc. Systems and methods for managing material storage vessels having information storage elements
US20090174528A1 (en) * 2006-08-21 2009-07-09 Brother Kogyo Kabushiki Kaisha Apparatus for communicating with RFID tag using optical information
EP1892648A3 (en) * 2006-08-23 2008-05-28 Brother Kogyo Kabushiki Kaisha RFID tag communication apparatus
US20080217409A1 (en) * 2006-08-23 2008-09-11 Akira Ito RFID tag communicating apparatus
US20100109850A1 (en) * 2006-08-23 2010-05-06 Hunter Douglas Inc. Dual control system and method
EP1892648A2 (en) 2006-08-23 2008-02-27 Brother Kogyo Kabushiki Kaisha RFID tag communication apparatus
US8317098B2 (en) * 2006-12-01 2012-11-27 Ncr Corporation Item having a data tag
US20080128492A1 (en) * 2006-12-01 2008-06-05 Prime Technology Llc Item having a data tag
US20080136591A1 (en) * 2006-12-06 2008-06-12 Russell Calvarese Automatic functionality switch for mobile devices
US7667597B2 (en) 2007-03-09 2010-02-23 Savi Technology, Inc. Method and apparatus using magnetic flux for container security
US20080218353A1 (en) * 2007-03-09 2008-09-11 Savi Technology, Inc. Method and Apparatus Using Magnetic Flux for Container Security
US7710275B2 (en) 2007-03-16 2010-05-04 Promega Corporation RFID reader enclosure and man-o-war RFID reader system
US8031072B2 (en) 2007-03-16 2011-10-04 Promega Corporation RFID reader enclosure and man-o-war RFID reader system
US8258961B2 (en) 2007-03-16 2012-09-04 Promega Corporation RFID reader enclosure and man-o-war RFID reader system
US20090314829A1 (en) * 2007-05-22 2009-12-24 Mcallistor Clarke Systems, Methods, and Devices for Replication of Data onto Wireless Sensors
US20090020607A1 (en) * 2007-07-17 2009-01-22 Dilshan Perera Method for Device Activation
US8096476B2 (en) * 2007-07-25 2012-01-17 Toshiba Tec Kabushiki Kaisha Article sales data processing apparatus
US20090026262A1 (en) * 2007-07-25 2009-01-29 Toshiba Tec Kabushiki Kaisha Article sales data processing apparatus
US20090059004A1 (en) * 2007-08-31 2009-03-05 Speed Trac Technologies, Inc. System and Method for Monitoring the Handling of a Shipment of Freight
US8281997B2 (en) 2008-02-19 2012-10-09 Bilcare Technologies Singapore Pte. Ltd. Reading device for identifying a tag or an object adapted to be identified, related methods and systems
US20100327060A1 (en) * 2008-02-19 2010-12-30 Bilcare Technologies Singapore Pte. Ltd. Reading device for identifying a tag or an object adapted to be identified, related methods and systems
USD626949S1 (en) 2008-02-20 2010-11-09 Vocollect Healthcare Systems, Inc. Body-worn mobile device
US20100079239A1 (en) * 2008-09-29 2010-04-01 Riddhiman Ghosh Repurposing User Identity Tokens
EP2179931A1 (en) 2008-10-23 2010-04-28 Avery Dennison Corporation Hand-held portable printer system and method
US20100103238A1 (en) * 2008-10-23 2010-04-29 Avery Dennison Corporation Hand-held portable printer system and method
US8154574B2 (en) 2008-10-23 2012-04-10 Avery Dennison Corporation Hand-held portable printer system and method
US8386261B2 (en) 2008-11-14 2013-02-26 Vocollect Healthcare Systems, Inc. Training/coaching system for a voice-enabled work environment
US20100156640A1 (en) * 2008-12-19 2010-06-24 Forster Ian J Optical control of rfid chips
US20100161009A1 (en) * 2008-12-19 2010-06-24 Avery Dennison Corporation Apparatus and methods for treating a wound
US8760295B2 (en) 2008-12-19 2014-06-24 Avery Dennison Corporation Apparatus and methods for treating a wound
US9135547B2 (en) 2008-12-19 2015-09-15 Avery Dennison Corporation Optical control of RFID chips
US8234507B2 (en) 2009-01-13 2012-07-31 Metrologic Instruments, Inc. Electronic-ink display device employing a power switching mechanism automatically responsive to predefined states of device configuration
US8457013B2 (en) 2009-01-13 2013-06-04 Metrologic Instruments, Inc. Wireless dual-function network device dynamically switching and reconfiguring from a wireless network router state of operation into a wireless network coordinator state of operation in a wireless communication network
US8205800B2 (en) 2009-10-20 2012-06-26 Hand Held Products, Inc. Long range selective RFID using laser photodetection wakeup
US20110091216A1 (en) * 2009-10-20 2011-04-21 Ken Addy Long range selective rfid using laser photodetection wakeup
WO2011126697A1 (en) 2010-04-08 2011-10-13 Checkpoint Systems, Inc. Auto -accreting database for eas-rf applications
US8537007B2 (en) 2010-04-08 2013-09-17 Checkpoint Systems, Inc. Autoaccreting database for EAS-RF applications
US8659397B2 (en) 2010-07-22 2014-02-25 Vocollect, Inc. Method and system for correctly identifying specific RFID tags
US9449205B2 (en) 2010-07-22 2016-09-20 Vocollect, Inc. Method and system for correctly identifying specific RFID tags
US8933791B2 (en) 2010-07-22 2015-01-13 Vocollect, Inc. Method and system for correctly identifying specific RFID tags
USD643400S1 (en) 2010-08-19 2011-08-16 Vocollect Healthcare Systems, Inc. Body-worn mobile device
USD643013S1 (en) 2010-08-20 2011-08-09 Vocollect Healthcare Systems, Inc. Body-worn mobile device
CN102024164A (en) * 2010-12-06 2011-04-20 上海大学 Radio frequency identification management system for polycrystalline diamond cutter
US9747480B2 (en) 2011-12-05 2017-08-29 Adasa Inc. RFID and robots for multichannel shopping
US9780435B2 (en) 2011-12-05 2017-10-03 Adasa Inc. Aerial inventory antenna
US9225383B2 (en) 2012-03-14 2015-12-29 Geoforce, Inc. System and method for implementation of a direct sequence spread spectrum transmitter
US9916555B2 (en) 2012-04-10 2018-03-13 Geoforce, Inc. Location tracking with integrated identification of cargo carrier contents and related system and method
US9713116B2 (en) 2012-04-10 2017-07-18 Geoforce, Inc. Apparatus and method for radio frequency silencing in oil and gas operations, excavation sites, and other environments
US9049641B2 (en) 2012-04-10 2015-06-02 Geoforce, Inc. Apparatus and method for radio frequency silencing in oil and gas operations, excavation sites, and other environments
US9082102B2 (en) * 2012-04-10 2015-07-14 Geoforce, Inc. System and method for remote equipment data management
US9922384B2 (en) 2012-05-02 2018-03-20 William Robert Cobb Pharmaceutical will call system and method
US20140048593A1 (en) * 2012-07-10 2014-02-20 Translogic Corporation System and method for tracking chain of custody in automated delivery system in a hospital setting
WO2015009979A1 (en) * 2013-07-17 2015-01-22 Lefevre Donald Long-range electronic identification system
US9500663B2 (en) 2014-11-11 2016-11-22 Genmark Diagnostics, Inc. Redundant identification for sample tracking on a diagnostic device
US20160188714A1 (en) * 2014-12-31 2016-06-30 Audioeye, Inc. Tracking device for audio playback

Similar Documents

Publication Publication Date Title
US7149658B2 (en) Systems and methods for transporting a product using an environmental sensor
Twist The impact of radio frequency identification on supply chain facilities
US6927687B2 (en) Method and apparatus for determining average environmental conditions
US6327576B1 (en) System and method for managing expiration-dated products utilizing an electronic receipt
US20070069895A1 (en) Rfid seal tag
US7602288B2 (en) Method for slap-and-ship RFID labeling
US20070000989A1 (en) Mail sorting systems and methods
Angeles RFID technologies: supply-chain applications and implementation issues
US7484662B2 (en) Recording of location event information in RFID tags
US7098794B2 (en) Deactivating a data tag for user privacy or tamper-evident packaging
US7348886B2 (en) System and method to track inventory using RFID tags
Michael et al. The pros and cons of RFID in supply chain management
US7151455B2 (en) Activating a data tag by load or orientation or user control
US6865516B1 (en) Method of recording the temperature of perishable products in cold chain distribution
US5602538A (en) Apparatus and method for identifying multiple transponders
US20070075861A1 (en) RFID asset identification systems
US7118029B2 (en) Smart instrument tray RFID reader
US5990794A (en) Apparatus for data communication and deactivation of electronic article surveillance tags
US20060044112A1 (en) Wearable RFID reader and system
US7082344B2 (en) Real time total asset visibility system
US20040056091A1 (en) Advertising compliance monitoring system
US20020067267A1 (en) Package identification system
US20020170961A1 (en) Method and system for providing shopping assistance using RFID-tagged items
US5493107A (en) Shelf price label and product placement verification method and apparatus
US20100060456A1 (en) Rf communication device with energy enhancement

Legal Events

Date Code Title Description
AS Assignment

Owner name: INTERMEC IP CORP., WASHINGTON

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:BENNETT, JAMES D.;REEL/FRAME:019028/0950

Effective date: 19991203

FPAY Fee payment

Year of fee payment: 4

FPAY Fee payment

Year of fee payment: 8

FPAY Fee payment

Year of fee payment: 12